Hello from Nebraska. I was trying to locate a good location for the long Auber PID temp probe that would be in a consistant location and yet be easy to clean as well. Contemplating this over a bottle of Nebraska brewed wine, when my wife said how about the wine cork? I drilled a hole in the cork and drilled two small holes into the top rack flange. One on the top lip of the flange and one high on the back side that touches the smoker wall. The hole location is more at the back of the smoker than the middle depth of the smoker. Then I just slid a wire through the two holes in the rack and tied the cork to the top of the rack. I put the probe through the cork and then sliped the rack back in place and adjusted the tip of the probe to be in the middle depth of the smoker. This keeps the probe tip away from the wall and the rack and also out of the way of my food. The cork will also insilate itself from the wall and the rack and not transfer unwanted heat temps to the probe. I'm hoping to auto tune the PID controller and know it will always be in the same place and easy to remove and clean when nessisary. Because of where I drilled the two holes, the grate still has plenty of room to slide in and out of the rack. Don't know if anyone has ever tried this, but it seems it would work like a permanent probe but be easily removeable for cleaning.